The big Arrowverse crossover event this year, which will be introducing Batwoman, has been entitled “Elseworlds”. In the comic book world, Elseworlds is the DC imprint for stories that are not in the established canon. The TV folks have released a poster for the crossover, which must be seen to be believed:
I debated whether to put this into the Batwoman thread. But the crossover is really its own thing which, as the poster demonstrates, doesn’t necessarily include Batwoman. Plus we’ve now got a thread in which to discuss the crossover when it arrives.
Stuff we already know about the crossover:
[li]Batwoman and Gotham City will be introduced.[/li][li]The Flash and Supergirl are technically switching nights.[/li][li]Legends of Tomorrow will not be included.[/li][li]Superman will appear and he’s bringing Lois Lane along.[/li][/ul]